Fig. 1. The murine synaptonemal complex.
a Schematic representation of the tripartite SC structure of mouse showing the two lateral elements (LEs) consisting of SYCP2 and SYCP3 flanking the central element composed of SYCE1/2/3, Tex12, and SIX6OS1. The transverse filament protein SYCP1 is connecting the lateral element and the central element with the SYCP1 C terminus residing in the lateral and the N terminus in the central element32. b Schematic representation of the helical structure of the SC exposing frontal view sections and lateral view sections. Lateral elements (SYCP3, SYCP2) in blue, central element (SYCE3-SYCE1, SIX6OS1, and SYCE2-TEX12) in green, transverse filaments (SYCP1) in purple in accordance with a. Individual transverse filaments are further marked with asterisks. The lateral elements are not displayed in the lateral view section to expose the central element and transverse filaments.